M5 555 555 557 Mersenne number exponent details

≡

is 2 ^5555555557 - 1

has 1672388866 decimal digits

takes 1,614,261.832 GHz-days to do one PRP test

-unknown- primality tests remaining

	Residue	Status
L-L	-unknown-	-unknown-
PRP	-unknown-	-unknown-

	Trial Factoring			P-1 Factoring				Combined
	Limit	GHz-days	Probability	B1	B2	GHz-days	Probability	GHz-days	Probability
Actual	2⁷⁸	11.0190	57.6923%	-	-	-	-	11.0190	57.6923%
Target	2⁹⁴	722,141.3914	64.8936%	26000000	1700000000	49,380.7214	4.0627%	771,522.1128	66.3199%
Difference	-16	-722,130.3724	-7.2013%	-26000000	-1700000000	-49,380.7214	-4.0627%	-771,511.0938	-8.6276%

Known prime factors:
No known factors for M5555555557

P-1 results:
No P-1 results for M5555555557

Trial Factoring results:

			Bits		Factor			GHz-Days		worth
date	userid	compid	from	to	factor	bits*	digits	spent	saved	worth
2022-12-24	Kriesel	martin	2¹	2⁷⁰		-	-	0.043	-	-
2022-12-29	Kriesel	martin	2⁷⁰	2⁷⁴		-	-	0.646	-	-
2023-01-09	Kriesel	martin	2⁷⁴	2⁷⁶		-	-	2.066	-	-
2023-02-11	Kriesel	martin	2⁷⁶	2⁷⁸		-	-	8.264	-	-

ECM factoring results:
No ECM results for M5555555557

Lucas-Lehmer results:
No L-L results for M5555555557

PRP results:
No PRP results for M5555555557

TF factor-bounds graph:

2⁷⁸

2⁷⁶

2⁷⁴

2⁷⁰

this exponent TF target: 94

2⁵⁰

2⁶⁰

2⁷⁰

2⁸⁰

2⁹⁰

2¹⁰⁰

Last modified: 2023-03-25T13:08:14+00:00